当前位置：在线题库搜索＞[单选题]维系蛋白质分子一级结构的化学键是（ ）。的答案是什么？
问题：
[单选题]维系蛋白质分子一级结构的化学键是（ ）。
A、离子键
B、肽键
C、二硫键
D、氢键
E、疏水键
参考答案：
B
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